What Is Dry Rot? Discover Causes and Warning Signs

Dry rot is a type of wood decay caused by certain species of fungi that attack and break down the cellulose in wood, leading to its deterioration. Despite the name, dry rot typically occurs in damp conditions where the wood has become moist. Here’s a detailed overview of dry rot:

Causes of Dry Rot

• Excess Moisture: Dry rot fungi thrive in wood that has been exposed to moisture due to leaks, poor drainage, or high humidity.
• Poor Ventilation: Areas with inadequate airflow can trap moisture and create an environment conducive to dry rot.
• Water Damage: Water intrusion from plumbing leaks, roof leaks, or high humidity levels can contribute to the onset of dry rot.
• Structural Issues: Improper construction or maintenance issues that allow moisture to accumulate can lead to dry rot.

Signs of Dry Rot

• Wood Discoloration: Affected wood may turn brown or a reddish-brown color.
• Cracking and Splitting: The wood may develop cracks or splits that look dry and brittle.
• Mushroom-Like Fruiting Bodies: These may appear on the surface of the wood or in nearby areas.
• Soft, Spongy Wood: The wood may become soft and spongy to the touch, indicating decay.
• Musty Odor: An unpleasant, musty smell may be present in areas affected by dry rot.